The sub-series comprises papers relating to the ministries performed by Fr. Albert Bibby OFM Cap. to republicans detained after the 1916 Rising. The section includes authorisations from British armed forces allowing Fr. Albert to visit detainees and extracts from various prison letters.

The fonds consists of the correspondence and papers of Capuchin friars detailing their involvement with participants in the national struggle. The majority of the material dates from 1916-1925 and includes many records highlighting the roles played by Irish Capuchins in ministering to republican leaders and their relations. Of particular interest is a large collection of prison letters including the correspondence of some of the leading figures of the Irish Revolution. The fonds also contains a large collection of republican publicity material, newspapers and miscellaneous items of ephemera and artefacts mostly relating to the military and political campaign organised by nationalists for Irish independence. A smaller collection relating to the repatriation of the bodies of Fr. Albert Bibby OFM Cap. and Fr. Dominic O’Connor OFM Cap. from the United States to Ireland in 1958 is also extant.